Pumping machinery.



M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED SEPT. 30, 1911.

1,124,295. I Patented Jail. 12, 1915.

6 SHEETS-SHEET 1.

Fig.1-

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION P111111)sEP1'.3o. 1911.

6 SHEETS-SHEET 2.

Patented Jan. 12, 1915.

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED SEPT. 30. 1911.

1 1 24,295.. Patented Jan. 12, 1915.

6 SHEETS-SHEET 3.

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION rum: SEPT. 30. 1911.

1 $24,295. Patented Jan. 12, 1915.

6 SHEETS-SHEET 4.

I I I I I L. II l I M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED SEPT. 30, 1911.

Patented Jan. 12, 1915.

6 SHEETS-SHEET 5.

M. T. CHAPMAN.

PUMPING MACHINERY.

APPLICATION FILED SEPT. 30, 1911. 1 1 24 295, Patented Jan. 12, 1915.

, 6 SHEETB-SHEET 6.

QW i Yt llhiliilPE STATEb PATENT @FldllCE MATTHEW T. CHAPMAN, OF AURORA,ILLINOIS, ASSIGNCR TO THE AMERICAN WELL WORKS, OF AURORA, ILLINOIS, ACORPORATION OF ILLINOIS.

PUMPING. MACHINERY.

ie ages.

To all whom it may concern Be it known that I,-MA'1"rHnw T. CHAP-' MAN,a citizen of the United States," residing at Aurora, injthe countyof'Kane and State of lllinois,"have invented certain new and usefulImprovements in Pumping Machinery, of which the iollowing is aspecification, reference 1bei It is one of the objects of my inventionto provide a new and improvedjme'ans for causing the upward stroke ofeach plunger to occupy a greater proportion of the time than does thedownward-stroke. In this way, for an interval just afterone of theplungers has reached its lowermost point, both plungers are movingupward. Thus one plunger begins to move upward with the stream ofwaterbefore the end of the upward stroke of the other plunger, with theresult that the Water is forced upward in. a continuous stream withoutbeing permitted to come. to rest. This obviates the necessity for givingthe stream of water a fresh start at the beginning of the stroke of eachplunger, and thus materially lessens the strain upon thepumpingmachinery.

"Another object of'my invention 18 to provide a new and improvedarrangement of parts by which the power is-apphed directly in line withthe plunger-rods so as to avoid any side draft which would jcramp themechanism and make necessary theuse of an undue amount of energy forraising a given quantity of water. 7

Another object is the improvement of pumping machinery in sundrydetailshereinafter pointed out. The means by which I have accomplished theseobjects are" illustrated in'the drawings and hereinafter specificallydescribed. T hat which lbelieve' to be new is set forth in the claims.

In the drawin s:-Figure 1 is a side view of my improve pumpingmachinery; Flg.

Specification of Letters Patent.

Patented Jan. t2, 1915.

'lpplication flied September 30, 1911. Serial No. 652,052.

2 is a front view thereof; Fig. 3 is a rear view thereof; Fig. 4-is atop View; Fig. 5 is a side view of the driving crank and the leversoperated thereby in a different phase of the operation from that shownin the other drawings, parts of the machine being cut away; Fig. 6 is aview, partly in section, of the crank shaft and driving gear;

.Fi g. 7 is a section taken on line 77 of F ig;

6; Fig. 8 is-a view, partly in section, showing a modified form of crankshaft and gear; and Fig. 9 is a section on line 9-9 of Fi 8. c

l leferring now to Fi gs. 1 to 7 of the draw I ings, inwhichcorresponding parts are in dicated by like reference characters,10in dicates a base upon which are mounted standards 11-12. of the frame.13 indicates a bar mounted iii-the standards 11--12, j'ou'rnaled uponwhich, by means of hubs 14;15,

are bellcrank levers 161'7. As shown in Fig. 3 the hubs 14t15 aresecured together by bolts 18 so that the levers lfi-l7 swing togetherupon the bar 13. 19 indicates another bar mounted in the standards11--12,

journaled upon which, by means of a hub so 20, is a bellcrank lever 21.The bars 13-49 are rigidly connected to the standards 11-42, serving tobrace them relative to each other. Each of the levers l617 is providedalong its rear edge w th'a slideas box 22, of any suitable construction,and the lever 21 is provided with a similar slidebox 23. In each of saidslide-boxes 2223 is mounted a slide-block 24 mounted uponthe-w'rist-portion 25 of a crank shaft 26 ably secured to one of thearms of said crank shaft, located concentrically relative to the axis ofrotation of the shaft. 30 indicates a shaft, journaled in the standards11-1'2, mounted on which is a pinion 31 meshing with the gear 29. 32indicates a driving pulley keyed or otherwise suitably secured upon theshaft 30. c

I As best shown in Fig. 4, the forward end of the lever 21 is forked, ineach of the arms 33-3t thereof there being secured a pin 3637 indicatelinks pivotally connected to the arms 3334 by means of said pins 35, thelower ends of said links being pivotally secured to a cross-head 38. Asbest shown in Fig. 2, the cross-head 38 is slidably mounted upon uprightguide-rods 39 40 which are ,mounted at their lower ends in a plate 41suitably secured to the base 10. -12-l3 indicate brace-bars extendingfrom the upper ends of the standards 11l2 to the upper ends of theguide-rods 39-40. -11 indicates a brace-bar connecting the upper ends ofthe guide-rods 39-40.

As best shown in Fig. 2 the forward ends of the levers 16-17 havepivotally mounted thereon, by means of pins 45-16, links 4718 which arepivotaliy connected at their lower ends to a cross-head 49 slidably'mounted upon said guide-rods 39-40. As shown in said Fig. 2, thecross-head38 is connected at its, central point, between the links3637,' with a plunger-rod 50, and the crosshead 49 is connected betweenthe links {17-48 with the plunger-rod 51, the said plunger-rod 51 beinghollow, with the plunger-rod working inside thereof.

Referring now more particularly to Figs. 6 and 7 which show the crankshaft and driving gear, it will be seen that the concentricallypositioned bearing portions 27-128 and the Wrist-portion 25 are formedintegrally with the arms 52-53, tothe latter of which the gear 29 issecured by bolts 54. A stud 55 extends from the outer face of thecrankarm 53, passing through a suitable opening in one of the spokes of thegear 29, a nut 56 being screw-threaded thereon. 57 indicates the upperend of the well-tube connecting-head, in which is mounted a stuliing box58 carried by a plate 58 59 indicates an oil-cup mounted on thestuiiing-box 58 surrounding the outer plunger-rod 51. 60 indicates alarge pipe leadmg from one side of the well-tube connecting-head 57 fordelivering the water as desired.

With' the driving pulley 82 rotating in the direction indicated by thearrow in Figs. 1

and 2, the pinion 31 and thegear 29 will be driven as indicated by thearrows.thereon in Fig. 5. As shown in said Fig. 5 the line A-B joiningthe center of the wrist-portion 25 and'the center of the bar 19 is atright angles to the line A--() joining the center of said wrist-portion25 to the axis of rotation of the crank shaft, and consequently thelever 21 is at its highest point. When the crank has reached theposition indicated by the line O() which is perpendicularto the lineB-C, the lever 21 will have reached its lowest point. Likewise when thecrank reaches the position indicated by the line U-D which is at rightangles to the line D- Epassing throu h the center of the bar 13, thelever 16 will ave reached its highest point. When thereafter the crankreaches the position indicated by the line UF which is perpendicular tothe line FE,

' between the standards.

the lever 16 will have reached its lowest point. In the construction;shown, each of the angles A-O*C and FOD is approximately 125". Itistherefore seen that each of the levers 16--17 and 21 is moving upward235/360 of the time and moving downward only 125/360 of the time. Whilethe crank is moving fromthe position indicated by the line O- F to thatindicated by the lineO-A, the' levers 16-17 and 21- are all movingupward, as is also the case when the crank moves fromjthe positionindicated by the line O-'C to the position indicated by the line 0-1).Inasmuch as one plunger-rod is started upward before the otherplunger-rod has reached its highest point, it will be seen that thestream of water is not permitted to come to rest at any time during theoperation of the pump, one plunger beginning to act before the otherplunger ceases its operative stroke. This'expeldient serves to lessenvery materially the strain upon the pumping mechanism as a Wholeascompared with that upon a pump in which the stream of'water comes to arest at the end of each operative stroke.

By the provision of the twolevers 16-17 acting together upon theplunger-rod 51, the

action is direct without any side thrust or side strain upon themechanism.- By the provision of the vertical guides and crossheads bywhich the plunger-rods are connected to the levers 16-17 and 21, theeffective pull upon the plunger-rods is in a direct vertical line.

In Figs. 8 and 9, which show a modification of the shaft and gear, thecorresponding parts are indicated by the same reference numerals as inFigs. 6 and 7, but with the addition of an exponent a. In thevconstruction here shown the arm 61 is made broader than the arm 56 andis secured at both ends by bolts 62 to the gear 29. Theconcentrically-positioned hearing at that end of the shaft to which thegear 29 is attached is made separate from the arm 61 in the form of anaxle 63. By this con.- struction the assembling of the parts is moreeasily accomplished.

Referring to Figs. 1 to 5, 64 indicates bolts which pass through thestandards 1112. 65 indicates spacing blocks in the form of washersplaced upon the. bolts 64 The tightening of the bolts draws saidstandards and spacingblocks to ether for holding the frame rigid.

What claim as my invention and desire to secure by Letters Patent is,-

1. In a pump, the combination of two levers adapted to rock about acommon axis, a plunger-rod, means for connecting said plunger-rodbetween the ends of said levers, a straight pin having. a slidingconnection with both of said levers, and means for moving said pin aboutan axis parallel with the lgh w s axis upon which said levers aremounted for actuating said levers'in unison to reciprocate saidplunger-rod.

2. In a pump, the combination of two levers adapted to rock about acommon axis, a plunger-rod, means for connectin said plunger-rod betweenthe ends of'said levers, and a crank having a straight wrist whichoperates upon said levers for actuating them in unison to reciprocatesaid plunger-rod.

3. In a pump, the combination of two bell-crank 'levers adapted to rockabout a common axis, a: plunger-rod, means for connecting saidplunger-rod between one arm of one ofsaid levers and the correspondingarm of the-other lever, a straight pin having asIidingeonnection withthe other arms oi said levers, and means for revolving 881d pin aboutanaxis parallel with the axis upon whichfsaidbell-crank levers aremounted or actuating said levers in unison to recipsocate said:plunger-rod.

4.. In a pump, the combination of two bellcrank levers adapted to rockabout a common axis, a plunger-rod,- means for connecting saidlunger-rod between one arm of one of sai levers and the correspondingarm of the other lever, and a crank having a straight wrist whichoperates upon the other arms of said two levers-for actuating saidlevers in unison to reciprocate said plunger-rod.

5. in a pump,the combination of two bell the free arm of-said lever withone of said crank'levers adapted to rock about a common axis, one arm ofone of said levers and the corresponding arm of the other lever beingprovided with slide-boxes, a crank having a straight wrist whichoperates in said slide-boxes to reciprocate the other arms of saidlevers in unison up and down, a plungerrod, and means for connectingsaid plunger-rod between said last-named arms of said levers.

6. in a pump, the combination of a frame, a plurality of bellcranklevers mounted thereon on parallel axes one above the other with one armof each lever pointing in its intermediate position toward the axis uponwhich the other lever is mounted, means operating upon both of said armsfor actuating said levers to swing the other arms in oppositedirections, and a plurality of plunger rods connected to said last-namedarms respectively.

'8'. In a pump, the combination, of a frame, a plurality of bellcranklevers mounted thereon on parallel axes one above the other with one armof each lever pointin in its intermediate position toward the axis uponwhich the other lever is mounted, a crank operating upon both of saidarms for actuating said levers to swing the other arms'in oppositedirections, and a plurality of plunger rods connected to said last-namedarms respectively.

8.. in apump, the combination of a frame, a plurality of bellcrenklevers mounted thereon on parallel axes one above the other 7 with onearm of each lever pointing in its hasa sliding connection with saidlever for reciprocating the lever, two plunger-rods located in the planeof said lever, and means for operatively connecting said lever with oneof said plunger-rods, of two oppositelydisposed levers adapted to bereci-procated in unison by said straight crank wrist, one of saidlast-named levers being on either .sideofsaid first-named lever, andmeans for operatively connecting the free ends of said last-named leverswith the other of said plunger-rods.

10. In a pump, the combination with a the crank said lever isreciprocated, two

plunger-rods located in the plane of said lever, and means foroperatively connecting plunger-rods, of two oppositely-disposedbellcrank levers adapted to be reciprocated in unison by said straightcrank wrist, one of said levers being on either side of said first-namedlever, and means for operatively connecting the free arms of saidlast-named lovers with the other of said plunger-rods.

11. In a pump, the comblnation with a bellcrank lever, a crank having astraight wrist which has a. sliding connection wlth one arm of saidlever whereby by rotation of the crank said lever is reciprocated, twoplunger-rods located in the plane of said lever, a vertical fguide, aslide-block connected to one 0 said plunger-rods and adapted to bereciprocated up and down on said guide, and means for operatively connecting-the free arm of said lever with said slide-block, of twooppositely-disposed bellcrank levers adapted to be reciprocated inunison by said straight crank wrist, one of said levers being on eitherside of said firstmentioned lever, a second slide-block connected to'theother of said plunger-rods and adapted to be reciprocated up and down onone arm of said lever whereby by the rotation of thecrank said lever isreciprocated,

two plunger-rods located in the plane of said lever, two verticalguide-rods on opposite sides of said plunger-rods, two cross-headsadapted to slide up and down on said guiderods, each of said cross-headsbeing connected toone of said plunger-rods, and links connecting thefree arm of said lever with one of said cross-heads, of twooppositelydisposed bellcrank levers adapted to be reciprocated in unisonby said straight crank wrist, one of said levers being on either side ofsaid first-named lever, and links connecting the free arms of saidlast-named levers with the other of said two cross-heads.

13. In a pump, the combination of two levers mounted on a fixed axis,means connecting said two levers so that they swing .in unison, a thirdlever positioned between said first-named two levers and mounted on afixed axis parallel with that upon which said first-named levers arepivoted, two plungerrods located in the plane of the central lever,

' means operatively connecting one of said plunger-rods to'said centrallever, means operatively connecting the other of said lunger-rods tosaid two levers, and a crank aving a single straight wrist adapted toactuate all of said levers to reciprocate the plunger-rods in oppositedirections.

14. In a pump, the combination of three levers each provided with a:slide-box, a crank the wrist of which works in said slideboxes forreciprocating said levers, the outside levers being swung in unison, andthe intermediate lever being swung for a part of the time in the samedirection with the outside levers but fora greater part of the time inthe opposite direction, and plunger-rods one operatively connected tosaid two outside levers and the other operatively connected to saidintermediate lever.

15. In a pump, the combination of three levers each provided with aslide-box, a crank the wrist of which works insaid slideboxes forreciprocating said levers,the outside levers being swung in unison andthe intermediate lever bemgswungfor a art of the time in the samedirection with tie outside levers but for a greaterpart of the time inthe opposite direction, two plunger-rods, connections between said twooutside levers and one of said plunger-rods, connections between saidintermediate lever and the other of said plunger-rods, and means adaptedto cause said connections tomove in'a vertical line whereby there isnoside'str'ain upon the plunger-rods as said levers are reciprocated.16; In a pump, the combination of two levers, means connecting said twolevers so that they swing in 'unison, a third lever positioned betweensaid first-named levers, each of said leversbeing provided with aslidebox, a crank adapted to operate in said three vers, meansconnecting said two levers so that they swing in unison, a third leverpositioned between said first-named two levers, each of said leversbeing provided with a slide-box, a crank located between the two axesupon which said levers are pivoted adapted to operate in said threeslide-boxes to reciprocate said levers, two plunger-rods located in theplane ofthe central lever, means operatively connecting one of saidplunger-rods to said central lever, and means operatively connecting theother of said plunger-rods to the said two levers.

- 18. In a pump, the combination of two levers, means connecting saidtwo levers so that they swing in unison, a third lever positionedbetween said first-named two levers, each of said levers being providedwith a slide-box the central longitudinal line of which passes throughthe axis upon which the lever swings, a crank journaled midway betweensaid two axes adapted to operate in said three slide-boxes toreciprocate said levers, two plunger-rods located in the plane of thecentral lever, means operatively con= necting one of said plunger-rodsto said central lever, and means operatively connecting the other ofsaid plunger-rods to said first-mentioned two levers.

19. In a pump, the combination of two levers, means connecting said twolevers so that they swing in unison, a third lever positioned betweensaid first-named two levers, two plunger-rods located in the plane ofthe central lever, means operatively connecting one of said plunger-rodsto said central lever, means operatively connecting the other of saidplunger-rods to the said first-mentioned'two levers, and a single crankoperatively connected to said levers adapted to swing them up and-down.

20. In a pump, the combination of two levers mounted on a fixed axis,means connecting said two levers so that they swing in unison, a thirdlever postioned between said first-named two levers and mounted on afixed axis parallel to that upon which said first-named levers arepivoted, asingle crank journaled'midway between said two axesoperatively connected to said levers adapted to 7 two standards risingtherefrom, two transverse bars connected to said standards adaptedtovhold the samerigid relative to each other, two levers mounted on oneof said transverse bars, a third lever mounted on the other of saidtransverse bars adapted to swing between'said first-named two. levers,two plunger-rods, means for connecting one of said plunger-rods to saidtwo levers mounted on one of said transverse bars, and means forconnectingthe other of said two plunger-rodsto the intermediate leverinounted on the other of said transverse ars.

22. In a pump, the combination of three levers each provided with aslide-box, a crank the wrist of which works in said slideboxes forswinging said levers in opposite directions, and plunger-rodsoperatively connected to said levers.

23. In a pump, the combination of three levers, operated by slidingblocks driven by a crank, one of said levers being operated between theother two levers for moving pump rods in opposite directions.

24. In a pump, the combination of three levers operated by slidingblocks driven by a crank, one of said levers being operated between theother two levers for moving pump rods inopposite directions in part ofthe revolution of. the crank and in the same direction in another partofthe revolution of the crank.

of. the crank, and means for holding, the

pump rods in vertical alinement.

26. In a pump, the combination of a base, two standards risingtherefrom, two transverse bars connected to said standards adapted tohold the same rigid relative to each other, two levers mounted on one ofsaid transverse bars, a third lever mounted on the other of saidtransverse bars adapted' to swing between said first-mentioned twolevers, each of said levers being provided with a slide-box, a singlecrank wrist operating in the slide-box of said three lewere adapted toreciprocate said levers, two plunger-rods located in the plane of saidintermediate lever, means for connecting one of said plunger-rods to thetwo levers mounted on pm of said transverse bars, and means forconnecting the other of said plunger-rods to the intermediate levermounted on the other of said transverse bars.

W; A. FURNNER, 'W. H. DE Busn.

